1,720,957 research outputs found
Multi-disciplinary surveys for the new geologicla maps of the low Friuli plain (Italy)
No full textThe study site is located in the central area of the Friuli Venezia Giulia (Italy) and is covered by geological map sheets 087 Palmanova and 108 Lignano Sabbiadoro. The area under consideration extends between the spring horizon to the north and Marano lagoon to the south. It covers a total area of 760 km2. The zone under consideration is characterised above all by the presence of alluvial deposits dating back to the Last Glacial Maximum (LGM; 30,000-17,000 b.C.) and by the presence of deposits originated by the activity of resurgent rivers including Stella, Zellina, Corno and Aussa. The western sector of the Lignano sheet also includes deposits that can be ascribed to the post-LGM activity of river Tagliamento (last 17,000 years). Along the coastline post-LGM deposits reach a thickness of 10 m. Along the lagoon fringe there are territories that were reclaimed in the Twentieth century where lagoon deposits outcrop.
The project was conducted within the framework of the GEO-CGT by the Regional Geological Survey – DG Environment and Public Works of the autonomous region of Friuli Venezia Giulia and the University of Trieste and Udine. It involved the preparation of 1:10,000 geological maps of Friuli Venezia Giulia which integrated new geological data (surveyed and processed to this very aim) into already existing information. Reference criteria for the cartographic representation and digitalisation are those set by the Italian Government for the preparation of the new national geological cartography at a scale of 1:50,000 (CARG project).
The Technical Geological Map (CGT) has been the primary source of grain-size and geotechnical information as far as the soil and the immediate subsoil of the areas taken into consideration. The bibliography collected has been integrated with the most recent studies and data on the geology and pedology of the areas involved. Also archaeological aspects have been taken into consideration to better define the history ad evolution of more recent deposits.
The map representing microrelief, together with the observation of aerial photographs taken in different years and satellite images, has proven a useful tool to analyse and define the area of the most frequent morphologies connected with river erosion and deposition phenomena.
This information has been subsequently cross-checked during surveying campaigns. More in detail, historic maps helped identify natural and/or man-made modifications of the hydrographic network ad of the use of soil in recent past. Some information on the age of the deposits were also taken from the numerous Roman archaeological sites present in the study areas.
Field surveys were aimed at identifying geomorphological landforms and sedimentologic characteristics and at defining the age of deposits. As the areas observed are plain ones and no deep natural outcrops are present, particular attention was given to the stratigraphy of the deposits that outcrop along the walls of artificial excavations. In the areas with no significant outcrops and in the most interesting ones, borehole logging was performed by means of a manual Edelmann probe. These boreholes reached a depth of 2-3 m and sometimes 6 m. The sediment samples collected were tested for grain-size distribution and carbon-14 dating.
Simultaneously, mechanical surveys were performed on the whole area reaching a depth of 10 m plus approximately a hundred static penetrometer probes reaching a 30 m depth.
The comprehensive geomorphological, sedimentological and geotechnical data collected permitted to define stratigraphic units, sedimentation environments, texture of surface deposits and the main landforms that characterise the western low Friuli plain.
The last surveying phase consisted in organising and processing the data collected thanks to the special functions of GIS. The entire project was conducted using a comprehensive set of hardware and software tools which permitted to maintain a close relation between the data collected on the field (database) and their digital geo-referenced map representation (geo-database). Data could therefore be viewed and interpreted according the standards set within the framework of the CARG project
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Aspetti dell'impatto della pesca della vongola verace filippina (Tapes philippinarum) con draghe al traino nella Laguna di Marano lagunare (Adriatico settentrionale).
No full textkoamabayili/VECTRON-author-checklist: VECTRON author checklist
No full textWe have done our best to complete the author checklist relating to the use of animals in the hut study. Note that the objective for the hut study was to evaluate the IRS treatment applications for residual efficacy against Anopheles mosquitoes, including the local An. coluzzii mosquito population. Cows were only used to attract mosquitoes into the huts and no tests were carried out directly on the cows. The author checklist is intended for use with studies where experiments are carried out on animals, which is why we have had such difficulty in completing this for the hut study, as many of the questions do not relate to how the cows were used
Author-wise bibliometric analysis based on entropy.
No full textAuthor-wise bibliometric analysis based on entropy.</p
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